Stop it. Believe in yourself.
Women, in particular, have problems believing in themselves. You RARELY hear men second-guess what they should be doing to better their lives or their family's lives. They just do it – period.
Many women will nurture everybody else BUT themselves. I know, because I did that for most of my life. Well, guess what? You're not going to live forever. Time to believe in yourself and step into your power as a woman and a human being.
Believe in yourself, nurture yourself, take care of yourself so you can have that much more to share and give to life and others in your life. Save space for yourself. Don't give it all away. Don't feel bad about it or apologize, either.